In order to obtain a highly reliable and low-cost wireless charging method, this article proposes a single-switch wireless power transfer (WPT) circuit with inherent constant-current output (CCO) and constant-voltage output (CVO) for battery charging. Compared with a full-bridge WPT circuit, the structure and control strategy of the proposed circuit are simple. And the shoot-through problem could be avoided in the proposed circuit. In order to realize the inherent CCO–CVO without the wireless communication and extra control circuit, the double-D quadrature (DDQ) coils are used in this article to remove cross-coupling between coils. And the corresponding compensation network is designed to realize the automatic transition from the CCO to CVO. There are no active control schemes used in the proposed method. The compensation design could enable primary-side protection of over current against the accidental removal of the secondary side. There is no compensation inductor in the secondary circuit, which reduces the volume and weight of the secondary circuit. Moreover, the transfer gain does not rely on the transformer parameters, and more parameters design freedom can be realized. Finally, the simulation and the experimental verification are carried out to verify the superiority of the proposed circuit.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Single-Switch WPT Circuit With Inherent CCO–CVO for Battery Charging


    Contributors:


    Publication date :

    2024-03-01


    Size :

    3745617 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Battery charging circuit and charging method

    FUKATSU TOSHINARI | European Patent Office | 2017

    Free access

    Battery charging control circuit

    PENG ZHIHUI / ZHANG JIAWEN / XIE YIKANG et al. | European Patent Office | 2023

    Free access

    Battery series charging circuit

    PENG ZHIHUI / XIE YIKANG / ZHANG JIAWEN et al. | European Patent Office | 2023

    Free access

    Battery charging management circuit and charging device

    QIN WEI | European Patent Office | 2021

    Free access